Related Manuals for BUSCH DOLPHIN LG
Summary of Contents for BUSCH DOLPHIN LG
- Page 1 DOLPHIN LG/LR Liquid Ring Vacuum Pumps LG 0890 A, LG 1200 A, LG 1910 A, LG 2680 A LR 0700 A, LR 1190 A, LR 1560 A, LR 2200 A Instruction Manual 0870231039 | -0001_en-US | Original instructions 9/21/2022...
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Page 2: Table Of Contents
Preventing Cavitation ............................Maintenance................................. Maintenance Schedule ............................Overhaul................................Decommissioning..............................10.1 Dismantling and Disposal ..........................Spare Parts................................Troubleshooting..............................Technical Data ..............................EU Declaration of Conformity..........................UK Declaration of Conformity ..........................2 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en... -
Page 3: Safety
... indicates a potentially dangerous situation that could result in damage to property. NOTE ... indicates helpful tips and recommendations, as well as information for efficient and trou- ble-free operation. Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 3 | 40... -
Page 4: Product Description
* No manifold, both connections to be used. ** For installations where gas and liquid are discharged to open gutter, both connections open. *** Supplied only when no internal flushing. 4 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en... - Page 5 Shaft seal flushing control Shaft seal flushing inlet Separator vessel NOTE Technical term. In this instruction manual, we consider that the term ‘machine’ refers to the ‘vacuum pump’. Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 5 | 40...
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Page 6: Description Of Figures 1 - 4
1 arrangement. Particular care should be taken to avoid any leakage of dangerous gases from the water drain outlet. WARNING If applying the configuration shown in figures 2 and 3. The gas leakage should be controlled according to the local conditions. 6 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en... -
Page 7: Operating Principle
The machine is intended for the placement in a non-potentially explosive environment. The machine is capable of maintaining ultimate pressure, see Technical Data [➔ 32]. The machine is suitable for continuous operation. Permitted environmental conditions, see Technical Data [➔ 32]. Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 7 | 40... -
Page 8: Start Controls
Variants 2.5.1 LG Series DOLPHIN LG’s are single-stage vacuum pumps and operate from atmospheric pressure to 160 hPa (mbar) ultimate pressure. 2.5.2 LR Series DOLPHIN LR’s are single-stage vacuum pumps and operate from atmospheric pressure to 33 hPa (mbar) ultimate pressure. -
Page 9: Transport
● Generally, the lifting point should be on the baseplate on which the machine is installed. ● The lifting point of a bare shaft pump is shown above. ● Check the machine for transport damage. Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 9 | 40... -
Page 10: Storage
● Drain the operating liquid from the machine and the system before storage. ● Or add an anti-freeze solution. After testing, all Busch DOLPHIN vacuum pumps are vented and drained. Short Term (Up to 3 Months) ● Seal all apertures with adhesive tape or provided caps. -
Page 11: Installation
● Make sure that the coupling is correctly aligned, see Fitting the Coupling [➔ 17]. If the machine is installed at an altitude greater than 1000 meters above sea level: ● Contact your Busch representative, the motor should be derated or the ambient temperature limited. -
Page 12: Suction Connection
– DN300 PN10 (for LG 1200 A and LR 1190 A) – DN350 PN10 (for LG 1910 A and LR 1560 A) – DN400 PN10 (for LG 2680 A and LR 2200 A) 12 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en... -
Page 13: Operating Liquid Connection
DN 80 PN 10 DN 25 PN 10 G1½" G¾" G1" G¾" ● Make sure that the operating liquid complies with the requirements, see Operating Liquid Settings [➔ 14]. Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 13 | 40... -
Page 14: Operating Liquid Settings
23.1 - 31.6 14.8 - 23.1 32.0 - 34.0 28.1 - 33.0 20.6 - 28.1 13.2 - 20.6 30.0 - 32.0 26.3 - 28.3 19.0 - 26.3 12.0 - 19.0 14 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en... - Page 15 21.5 - 29.3 13.7 - 21.5 29.7 - 31.3 26.0 - 30.6 19.1 - 26.0 12.2 - 19.1 26.4 - 28.0 23.2 - 27.2 17.0 - 23.2 10.9 - 17.0 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 15 | 40...
- Page 16 Chemical compatibility should always be checked by competent personnel before use, particular attention should be paid to elastomer material selection. If in doubt, please consult Busch. 16 | 40...
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Page 17: Fitting The Coupling
LG 0890 A & LR 0700 A LG 1200 A & LR 1190 A LG 1910 A & LR 1560 A LG 2680 A & LR 2200 A Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 17 | 40... -
Page 18: Electrical Connection
● If the machine is equipped with a power connector, install a residual current protective device to protect persons in case of isolation default. ● Busch recommends installing a type B residual protective device suitable for the electrical in- stallation. -
Page 19: Machine Delivered With A Variable Speed Drive (Option)
● If the machine is equipped with a power connector, install a residual current protective device to protect persons in case of isolation default. ● Busch recommends installing a type B residual protective device suitable for the electrical in- stallation. - Page 20 If the rotation of the motor must be changed: ● Switch any two of the motor phase wires. For motor wiring and wiring diagrams, please refer to motor manufacturers instruction man- uals. 20 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en...
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Page 21: Commissioning
– Machines with gland packing for shaft sealing require the gland to be adjusted during operation. Uniformly tighten the gland plate so that the liquid leakage along the shaft from the packing is 45 to 60 drips per minute. Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 21 | 40... -
Page 22: Preventing Cavitation
However, this increases the cooling water flow considerably. In most cases the low ulti- mate pressure is not required and cavitation shall be avoided by means of vacuum limitation rather than cooling. 22 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en... -
Page 23: Maintenance
● Shut down the machine and lock against inadvertent start up. ● Turn off the operating liquid system. ● Vent the connected lines to atmospheric pressure. If necessary: 1. Drain the operating liquid 2. Disconnect all connections Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 23 | 40... -
Page 24: Maintenance Schedule
If an inlet screen or filter is installed: ● Check it and clean if necessary. Every 5 years ● Have a major overhaul (contact Busch). 24 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en... -
Page 25: Overhaul
● Decontaminate the machine as much as possible and state the contamination status in a ‘Dec- laration of Contamination’. Busch will only accept machines that come with a completely filled in and legally binding signed ‘Declaration of Contamination’ (form downloadable from www.buschvacuum.com). -
Page 26: Decommissioning
Dismantling and Disposal ● Separate special waste from the machine. ● Dispose of special waste in compliance with applicable regulations. ● Dispose of the machine as scrap metal. 26 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en... -
Page 27: Spare Parts
Use of non-Busch genuine spare parts. Risk of premature failure! Loss of efficiency! ● The exclusive use of Busch genuine spare parts and consumables is recommended for the correct functioning of the machine and to validate the warranty. Spare parts kit Description Part no. -
Page 28: Troubleshooting
● Flush the machine and check rotation by hand. If trouble persists, contact Busch. Discharge pressure too high ● Make sure the vent line is free of restrictions. 28 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en... - Page 29 Axial clearance not conforming ● Recalibrate the axial clear- with the requirements follow- ance. ing a repair. Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 29 | 40...
- Page 30 The bearings have been in- ● Reinstall the bearings. stalled incorrectly. Bearing is damaged. ● Replace the damaged bear- ing. 30 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en...
- Page 31 Loose contact between the ● Fill the space with concrete, baseplate and the foundation, tighten the anchor bolts. or the anchor bolts are loose. Alignment fail. ● Adjust alignment. Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 31 | 40...
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Page 32: Technical Data
- cast iron / full stainless steel Dimensions (bare shaft ma- 2370 x 1330 x 1865 2500 x 1550 x 2160 chine) – L x W x H 32 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en... - Page 33 - cast iron / full stainless steel Dimensions (bare shaft ma- 2732 x 1785 x 2560 3191 x 2065 x 2965 chine) – L x W x H Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 33 | 40...
- Page 34 - cast iron / full stainless steel Dimensions (bare shaft ma- 2020 x 1350 x 1865 2258 x 1550 x 2160 chine) – L x W x H 34 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en...
- Page 35 - cast iron / full stainless steel Dimensions (bare shaft ma- 2512 x 1785 x 2560 2891 x 2065 x 2965 chine) – L x W x H Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 35 | 40...
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Page 36: Eu Declaration Of Conformity
EU Declaration of Conformity This Declaration of Conformity and the CE-markings affixed to the nameplate are valid for the machine within the Busch scope of delivery. This Decla- ration of Conformity is issued under the sole responsibility of the manufacturer. -
Page 37: Uk Declaration Of Conformity
UK Declaration of Conformity This Declaration of Conformity and the UKCA-markings affixed to the nameplate are valid for the machine within the Busch scope of delivery. This Dec- laration of Conformity is issued under the sole responsibility of the manufacturer. - Page 38 Notes 38 | 40 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en...
- Page 39 Instruction Manual DOLPHIN LG 0890-2680 A, LR 0700-2200 A_EN_en 39 | 40...
- Page 40 With a network of over 60 companies in more than 40 countries and agencies worldwide, Busch has a global presence. In every country, highly competent local personnel delivers custom-tailored support backed by a global network of expertise. Wherever you are.